Answer this question truthfully
### Question: What to expect if I have Non-Hodgkin lymphoma  (Outlook/Prognosis)?
### Response: The International Prognostic Index (IPI) is the most widely used prognostic system for Non-Hodgkin lymphoma. This system uses 5 factors:
Age Lactate dehydrogenase (LDH) level Performance status Clinical stage Sites of extranodal disease